The following information is summarized from an email received from the state of North Dakota:
At approximately 2215 MST on 12/18/2019, while setting up for a radiography shot, the radiography team experienced a source disconnect. When the team realized a disconnect occurred, they established a 2 mR/hr. boundary and contacted the radiation safety officer (RSO). The RSO arrived on site and was able to retrieve the source back into the shielded position. No overexposures were reported. The licensee removed the camera from service and returned it to their facility in Bismarck, ND.
The licensee determined that poor camera maintenance and personnel error contributed to the guide tube being only partially connected to the camera which led to the disconnect. The radiography crew was briefed on the cause of the event and the proper steps to maintain and inspect a camera prior to use.
The camera was a SPEC 150, serial number 2592 , with a 66 Ci
Ir-192 source, serial number AK 2405.